EP 1544856 A3 20051116 - Optical memory plate or panel
Title (en)
Optical memory plate or panel
Title (de)
Optische Speicherplatte - Speicherscheibe
Title (fr)
Support ou panneau de mémoire optique
Publication
Application
Priority
- EP 03104827 A 20031219
- EP 02102864 A 20021220
Abstract (en)
[origin: EP1544856A2] An optical memory plate as a data storage optical medium, particularly suitable for identification purposes or protection against forgery and counterfeiting, by providing radiation inscription of data and read-out of thus stored inscription data, as well as a method of recording (with either X-rays or ultraviolet rays) and reading out said data has been disclosed, characterised in that said optical memory comprises a europium doped alkali metal halide storage phosphor layer, substantially free of alkaline earth metals.
IPC 1-7
IPC 8 full level
C09K 11/77 (2006.01); G11B 7/2433 (2013.01); G21K 4/00 (2006.01); G11B 7/243 (2013.01)
CPC (source: EP)
C09K 11/7733 (2013.01); G11B 7/2433 (2013.01); G21K 4/00 (2013.01); G11B 2007/24314 (2013.01); G11B 2007/24326 (2013.01)
Citation (search report)
- [XY] US 5540859 A 19960730 - NAKAMURA TAKASHI [JP], et al
- [XY] EP 1217633 A1 20020626 - AGFA GEVAERT [BE]
- [X] EP 1113458 A1 20010704 - AGFA GEVAERT [BE]
- [X] US 2001007352 A1 20010712 - HELL ERICH [DE], et al
- [Y] PATENT ABSTRACTS OF JAPAN vol. 012, no. 323 (P - 752) 2 September 1988 (1988-09-02)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 03104827 A 20031219